The present paper continues the study (begun by Quattrocchi, Colouring 4-cycle systems with specified block colour pattern: the case of embedding P3-designs, Electron. J. Combin., 8 (2001)) of 4-cycle systems with specified block colour patterns that are also strict colourings in the sense of Voloshin (Coloring Mixed Hypergraphs: Theory, Algorithms and Applications, American Mathematical Society, Providence R.I. (2002)). Here we consider colourings with patterns of size 3 or 4 such that each colour class C induces a P2-design embedded into the 4-cycle system. AMS classification: 05B05.
Terry S. Griggs, Giovanni Lo Faro, Gaetano Quattro